When to exercise stock options: What to consider before you decide
18 min
San Francisco native (yes, really). @uw and Lowell High alum. I like to nerd out on fintech, stock options and taxes.
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San Francisco native (yes, really). @uw and Lowell High alum. I like to nerd out on fintech, stock options and taxes.
Early exercise may reduce the taxable difference and start the ISO holding period sooner, but it also puts your money at risk for longer.
Waiting can be a valid strategy. It preserves cash and can give you more information about the company. But exercising later may become more expensive, and a departure or layoff could shorten your timeline. Just make sure waiting is a strategic choice based on the trade-offs, instead of a decision you keep postponing because it feels complicated.
Exercising doesn’t need to be an all-or-nothing decision. There are many routes you could take, including exercising some now and waiting on the rest. You could also:
Set a personal cash limit and exercise only what fits within it
Estimate how many ISOs you could exercise before triggering AMT, and only exercise that amount
Set an annual amount to exercise based on your vesting schedule, and revisit it annually to make sure it still fits in your goals
Decide not to exercise if the potential return doesn’t justify the cost and risk
| Approach | Potential advantages | Potential drawbacks | May suit someone who… |
|---|---|---|---|
Exercise now | May reduce the taxable difference if the 409A valuation is still low; starts the ISO holding period sooner | Requires cash sooner; increases exposure to an illiquid private company; the shares may never become liquid | Can comfortably cover the cost, understands the risks, and has confidence in the company |
Exercise in stages | Spreads the cost and risk over time; preserves more cash; may help manage potential taxes | Later exercises may cost more if the 409A valuation rises; requires ongoing planning | Wants to begin exercising without committing to the full grant |
Wait | Preserves cash; reduces how long money is tied up; may allow a tender offer, secondary sale, or cashless exercise later | The 409A valuation and potential tax bill may rise; leaving or being laid off could shorten the exercise window | Isn’t comfortable with the current cost or risk, or expects a realistic liquidity opportunity |
Consider whether spending your money on exercising would:
Reduce your emergency savings below a comfortable level
Delay paying off high-interest debt
Interfere with near-term priorities such as buying a home or taking a career break
Leave too much of your income and net worth dependent on one company
Compare the proposed exercise with other uses for the money. For example, would putting $50,000 into one private company make sense for your financial plan, compared with investing that amount across a diversified portfolio?
Ask whether you could handle losing the full amount committed. Private shares may remain illiquid for years and could ultimately be worth less than expected, or nothing at all.
Possible routes include:
Personal savings
Selling other investments
Traditional borrowing from a bank
A combination of personal cash and financing
Waiting for a liquidity event and possible cashless exercise
Borrowing from friends or family
Compare the impact of each route on your monthly cash flow, personal assets, potential upside, and overall risk. For example, traditional borrowing may increase your debt-to-income ratio, which could affect your ability to qualify for a mortgage or other credit.
You can also use a combination of payment methods in some cases.
As an example, you may be comfortable investing $50,000 of your own cash but face a $200,000 total exercise cost. Depending on eligibility, you could use personal cash for part and non-recourse financing for the remaining $150,000. But of course, always check with a tax professional before making major decisions.
Secfi helps you understand and act on your equity decisions. Since 2017, we’ve helped over 55,000 startup executives and employees model their equity. It’s personal to us; our founders had to walk away from equity at their former companies because they couldn’t afford the cost.
Here’s why people at companies like Uber, Anthropic, and Pinterest choose Secfi:
We built Maeve specifically to answer equity questions for startup employees and executives. It’s based on years of proprietary research and calculators we developed at Secfi, now available all in one place with our AI equity assistant. You can fact-check its assumptions, which can be helpful compared to fragmented online equity tools or LLM responses, which can be hard to follow and check their calculations.
To make it easy to get started, you can link Maeve directly to Carta in seconds. Or if your grant documents live elsewhere, you can upload or scan them in directly so you don’t have to manually enter every detail.
Ask Maeve any questions about the variables that impact when to exercise stock options, and get answers specific to your company and situation. Maeve can help you model and compare what happens if anything changes, including:
Your company’s 409A valuation
The taxable difference between your strike price and fair market value
The number of options that have vested
Your employment status and exercise deadline
Your available savings and financial priorities
The likelihood of an IPO, acquisition, tender offer or secondary sale